eg Alba, where a vowel is inserted between 'l' and 'b' when Alba is spoken.
Tapadh leibh

Eh?? Not in any variety of English I'm familiar with but I guess it's possible. Some English variants (in particular Scottish English and Hiberno English) have it in words like film or world though.In modern English, you only really see the svarabhakti when you come to say words ending in "sm"
That's just bad habits, not a choice. The second vowel is always strong in the surviving dialects i.e. if the first vowel is /a/ then the second is /a/, if it's /o/ then the second is /o/ and so on. By actually writing the second vowel you introduce confusion because in that position the <a> could be either /a/ or /ə/. So Barbhas can *only* ever be /baravəs/ but Barabhas could be /baravəs/ or /barəvəs/ (which it isn't).Can lead to spelling choices, e.g. Barbhas/Barabhas
I guess he was talking about the words in -ism (Buddhism etc), -[ɪzəm]In modern English, you only really see the svarabhakti when you come to say words ending in "sm"
Eh?? Not in any variety of English I'm familiar with but I guess it's possible. Some English variants (in particular Scottish English and Hiberno English) have it in words like film or world though.
I did say strong, not the same. True, in most cases and most dialects, the helping vowel is both strong AND the same but the exact details of quality vary from dialect to dialect but they are all strong (i.e. not weak /ə/). Stress though is still on the first syllable though linguists disagree if the helping vowel carries strong secondary stress or of there's something more strange going on i.e with the whole segment qualifying as a first syllable etc. As a rule of thumb, stress on the first syllable, at best equal on both.Agus dè mu dheidhinn "dearbh"? Cluinnear "dearabh" gu tric - ach cuideachd "dearabha", le cudrom air an dàrna A. Dualchainnt Leòdhais tha mi a' creidsinn.